The speed limit on Kelly Drive near Fountain Green Drive is 35 m.p.h., but the average speed of motorists is nearly 55.

In an attempt to slow everybody down, the city has installed sensors in the roadway that determine the speed of vehicles approaching Fountain Green, about a half-mile north of the Girard Avenue Bridge.

If a vehicle passes the sensor going above the speed limit, the light at Fountain Green turns red.

Previously, the light turned red only if a car was waiting to turn onto Kelly Drive or a pedestrian pushed the crosswalk button.